I have an SGD-ND3 neck and an SGD-SW4 bridge. They both sound great, but because they are completely different designs, they don't match. The SW4 has much less output. There are several things I was thinking of... Wire them to the stereo output jack, go into a stereo to mono pedal that has gain. An onboard buffer with 2 channels and gain. An onboard buffer just for the SGD-SW4 with gain. How would they interact if only one has a buffer? Any suggestions on how to go with this? Any specific models of pedals, buffers, etc?